I can't say I remember very clearly which forum I read that from..... I heard it changed from OPA627 to OPA275 or something? To be honest I have never used an amp for my PMP before....so I don't know which is better in what ways....or even different at all....Please forgive the newbie 
Anyone please help explain to me?? I plan to use a TF-10pro

Anyone please help explain to me?? I plan to use a TF-10pro












